communications captioned by media access group at wgbh access.wgbh.org [ chimes rattling ] >> ross: if you need me, call me. >> [ cheering and applause ] >> no matter where you are, no matter how far, just call my name. i'll be there in a hurry. on that, you can depend and neve >> man: right now, though, a cloud, a literal one, is hanging over the packed crowd as a severe thunderstorm watch -- >> woman: this'll be an event, the kind of thing you tell your grandchildren about. >> man: this is a landscape of humanity -- not thousands, hundreds of thousands --